Halle Berry has taken to social media to poke fun at those pesky pregnancy rumours.

The 50-year-old Oscar winner, who has two children already, wore a form-fitting silver sequinned dress and matching heels to the Butterfly Ball in Los Angeles on Saturday night, and was pictured posing with her hands over her stomach as if cradling her 'bump'.

When she stood to the side, the bump was even more apparent, and Halle made no effort to conceal her new curves.

(Image: Splash News)

(Image: Splash News)

After the rumour mill went into overdrive, the Hollywood star eventually decided to silence the speculation herself.

Alongside a sultry snap, she wrote: "Can a girl have some steak and fries?"

A rep for the Hollywood actress earlier told Mirror Celebs that speculation Halle is expecting a child is "completely false".

The actress is not knowingly with anyone at the moment, having divorced her French actor husband Olivier Martinez in December 2016, with whom she has three-year-old son Maceo.

She's also the mum to daughter Nahla, aged nine, who she shares with Gabriel Aubry from their previous relationship.

(Image: Splash News)

(Image: Splash News)

Back in 2014, Halle told Ellen Generes on her chat show that discovering she was pregnant with her second child at the age of 47 was a total shock - especially as she thought her baby-making days were over.

"They call it a geriatric pregnancy," she said at the time.

"I was, you know, on my way … this is probably way TMI, but I was really, you know, kinda premenopausal so to have this happen was a huge [shock]."